Signal is a cross-platform encrypted messaging service developed by the Signal Foundation and Signal Messenger LLC. It uses the Internet to send one-to-one and group messages, which can include files, voice notes, images and videos. It can also be used to make one-to-one and group voice and video calls,and the Android version can optionally function as an SMS app.

1. SIGNALFAST , SIMPLE AND SECURE
Privacy that fits in your packet

2. FOUNDERS
● A Cryptographer
● Creator of Open -
Whisper Systems
● Co-founder of
WhatsApp
Moxie Marlinspike
Brain Acton
● Creator Open -
Whisper Systems
● Co-founder of
WhatsApp

3. OUTLINE
About Signal1 Features2
Security3 Why Signal ?4
Pros Vs Cons5

4. “ I trust Signal because it’s well built, but more
importantly, because of how it’s built: open
source, peer reviewed, and funded entirely by
grants and donations. A refreshing model for
how critical services should be built."
—Jack Dorsey
CEO of Twitter and Square

5. OVERVIEW
1

6. ❏ A Secure & Private Instant Messaging App
❏ Completely Free and Open source
❏ Cross Platform Encrypted Messaging Service
❏ Funded by Non Profit
LICENSE PUBLISHED :-
● CLIENT CODE - GPLv3
● SERVER CODE - AGPLv3
SUPPORTING OS - ANDROID , IOS AND DESKTOP
OVERVIEW

7. FEATURES
2

8. Features
Secure Unique
PIN
Signal PIN’s
Self Destructing
time limit
Disappearing Messages
Avoid tracking
typing
Incognito Keyboard
E2E Message ,
Audio and video
End to End Encrypted
contact entry to
send messages to
yourself.
Note to Self
Remove once it is
viewed
View Once Media

9. SECURITY
3

10. E2E is enabled
by default
No Metadata
Encryption
IPs and
TimeStamps
are kept by
company
WhatsApp
Provides default
E2E
Encrypts all
Metadata
No IPs or
TimeStamps
are kept by
company
Signal
E2E is provided
only for Secret
Chat option
No Metadata
Encryption
IPs and
TimeStamps
are kept by
company
Telegram
SECURITYCOMPARISON
VSVS

11. WHY
SIGNAL?
4

12. ★ Speak Freely
★ Say Anything
★ Make Privacy Stick
★ Get Together with
Groups

13. SIGNAL TELEGRAM WHATSAPP
E2E
Encryption Turn on
by default
Open Source
Self Message
Destruct
Verify Contact
Fingerprints

14. Pros Cons
A secure messaging platform. Buggy, especially on iOS.
Cross Platform Having UI glitches ,but doesn’t affect
security
Fully open source Not widely used or known.
Extremely familiar, intuitive interface. Requires your phone number for contact
discovery.
Allows audio chat, with verification. Anyone intent on tracking your internet use
can see you’re using Signal. However, they
won’t be able to read your messages.
PROS & CONS